Answer:
Nicotine acts as a stimulant and/or depressant in the body.
Step-by-step explanation:
A stimulant is known as a substance that causes pleasure and exhilaration by increasing the nervous system and physiological activity levels. A depressant, on the other hand, is the opposite of a stimulant - it decreases one's neurotransmission levels in order to lower nervous system activity and thereby calm them down. By doing this, nicotine creates differing effects, such as a sense of security or euphoria, within the person, which easily allows them to become addicted. It is a substance that changes the way your body and/or mind functions, which is why it's often included in drugs. For example, nicotine is usually found in tobacco and plays a big part in why said drug is so addictive to many.